Wireless traction battery force sensor
US-2017331160-A1 · Nov 16, 2017 · US
Non-aqueous electrolyte secondary battery
US2018034112A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018034112-A1 |
| Application number | US-201615550409-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 18, 2016 |
| Priority date | Feb 27, 2015 |
| Publication date | Feb 1, 2018 |
| Grant date | — |
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Abstract
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The present invention aims to suppress gas generation during charge/discharge cycles, storage, and the like when a group IV to VI oxide, such as a lithium titanate, is used as a negative electrode active material. A non-aqueous electrolyte secondary battery includes a positive electrode having a positive electrode collector and a positive electrode mixture layer formed thereon, a negative electrode having a negative electrode collector and a negative electrode mixture layer formed thereon, and a fluorine-containing non-aqueous electrolyte. In the positive electrode mixture layer, a lithium transition metal oxide and a phosphoric acid compound are contained. In the negative electrode mixture layer, a group IV to VI oxide is contained which contains at least one type of element selected from a group IV element, a group V element, and a group VI element of the periodic table and which has a BET specific surface area of 2.0 m 2 /g or more.
First claim
Opening claim text (preview).
1 . A non-aqueous electrolyte secondary battery comprising: a positive electrode including a positive electrode collector and a positive electrode mixture layer formed thereon; a negative electrode including a negative electrode collector and a negative electrode mixture layer formed thereon; and a fluorine-containing non-aqueous electrolyte, wherein in the positive electrode mixture layer, a lithium transition metal oxide and a phosphoric acid compound are contained, and in the negative electrode mixture layer, a group IV to VI oxide is contained which contains at least one type of element selected from a group IV element, a group V element, and a group VI element of the periodic table and which has a BET specific surface area of 2.0 m 2 /g or more. 2 . The non-aqueous electrolyte secondary battery according to claim 1 , wherein the group IV to VI oxide is a lithium titanate. 3 . The non-aqueous electrolyte secondary battery according to claim 1 , wherein the phosphoric acid compound is a lithium phosphate. 4 . The non-aqueous electrolyte secondary battery according to claim 1 , wherein in the lithium transition metal oxide, tungsten is solid-solved, and to the surface of the metal oxide, a tungsten oxide is adhered. 5 . The non-aqueous electrolyte secondary battery according to claim 4 , wherein the tungsten oxide is WO 3 . 6 . The non-aqueous electrolyte secondary battery according to claim 1 , further comprising a separator interposed between the positive electrode and the negative electrode, wherein the separator includes a polypropylene layer.
Assignees
Inventors
Classifications
Polyolefins · CPC title
characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes · CPC title
Li-accumulators · CPC title
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title
- H01M10/445Primary
in response to gas pressure · CPC title
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- What does patent US2018034112A1 cover?
- The present invention aims to suppress gas generation during charge/discharge cycles, storage, and the like when a group IV to VI oxide, such as a lithium titanate, is used as a negative electrode active material. A non-aqueous electrolyte secondary battery includes a positive electrode having a positive electrode collector and a positive electrode mixture layer formed thereon, a negative elect…
- Who is the assignee on this patent?
- Sanyo Electric Co
- What technology area does this patent fall under?
- Primary CPC classification H01M10/445. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Feb 01 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).